I've definitely noticed the issue with an excess of slays - weapons with the full set of all eight slays or nearly that don't seem to be particularly uncommon, even fairly early on. (I also just got...

Some slight ID weirdness: I'm wearing an Amulet of Resist Acid, and it's already identified by that name despite the fact I haven't yet learned the rune of rAcid, so it still has the {??} and "You do...